Synthesis of LiCoO2 particles with uniform size distribution using hydrothermally precipitated Co3O4 fine particles

1999 ◽  
Vol 123 (1-4) ◽  
pp. 95-101 ◽  
Author(s):  
T Nakamura
Keyword(s):  
Size Distribution ◽  
Fine Particles ◽  
Uniform Size ◽  
Uniform Size Distribution

Germanium dots with highly uniform size distribution grown on Si(100) substrate by molecular beam epitaxy

1997 ◽  
Vol 71 (24) ◽  
pp. 3543-3545 ◽  
Author(s):  
Xun Wang ◽  
Zui-min Jiang ◽  
Hai-jun Zhu ◽  
Fang Lu ◽  
Daming Huang ◽  
...  
Keyword(s):  
Molecular Beam Epitaxy ◽  
Size Distribution ◽  
Molecular Beam ◽  
Uniform Size ◽  
Highly Uniform ◽  
Uniform Size Distribution

Synthesis of LiCoO2 particles with tunable sizes by a urea-based-homogeneous-precipitation method

2020 ◽  
Vol 111 (4) ◽  
pp. 347-355
Author(s):  
Munekazu Motoyama ◽  
Hiroki Iwasaki ◽  
Miyuki Sakakura ◽  
Takayuki Yamamoto ◽  
Yasutoshi Iriyama
Keyword(s):  
Size Distribution ◽  
Average Diameter ◽  
Precipitation Method ◽  
Homogeneous Precipitation ◽  
Uniform Size ◽  
Homogeneous Precipitation Method ◽  
Wide Range ◽  
Size Uniformity ◽  
Average Size ◽  
Uniform Size Distribution

Abstract This paper reports the synthesis of monodisperse spherical LiCoO2 particles in a wide range of average diameter using a urea-based-uniform-precipitation method. The average diameter of LiCoO2 particles can be varied from 2 to 14 lm with a uniform size distribution. The effective approach to maintain the size uniformity while changing the average size of LiCoO2 particles is to keep the ratio of [CO(NH2)2] to [CoSO4] at 8 even when the CoSO4 and urea concentrations are changed.

Growth of highly uniform size-distribution ZnO NR arrays on sputtered ZnO thin film via hydrothermal with PMMA template assisted

2020 ◽  
Vol 105 ◽  
pp. 104736 ◽  
Author(s):  
Nantarat Srisuai ◽  
Sakoolkan Boonruang ◽  
Mati Horprathum ◽  
Pongsak Sarapukdee ◽  
Somyod Denchitcharoen
Keyword(s):  
Thin Film ◽  
Size Distribution ◽  
Zno Thin Film ◽  
Uniform Size ◽  
Highly Uniform ◽  
Uniform Size Distribution

Preparation of TiO2 Nanopowders by Non-Hydrolytic Sol−Gel and Solvothermal Synthesis

2011 ◽  
Vol 110-116 ◽  
pp. 1934-1939
Author(s):  
Yan Xiang Wang ◽  
Min Xu ◽  
Jian Sun
Keyword(s):  
Size Distribution ◽  
Solvothermal Synthesis ◽  
Solvothermal Method ◽  
Sol Gel ◽  
Rutile Phase ◽  
Uniform Size ◽  
Oxygen Donor ◽  
Method Effects ◽  
Sol Gel Synthesis ◽  
Uniform Size Distribution

TiO2nanopowders were synthesized by non-hydrolytic sol−gel synthesis and solvothermal method. Effects of the type of alcohol on the properties of TiO2nanopowders were investigated. XRD and FSEM were used to characterize TiO2nanopowders. The results showed that TiO2nanopowders with diameters of about 50nm and micro-spheres with diameters of about 400~500nm were obtained by non-hydrolytic sol−gel synthesis, when ethanol and isopropanol were used as oxygen donor and solvent, respectively. TiO2prepared with ethanol by non-hydrolytic sol−gel synthesis and calcined at 700°C consisted only 3.8% rutile phase. After solvothermal synthesis, TiO2nanopowders with diameters of about 50nm were obtained when ethanol and isopropanol were used as the oxygen donor. However, submicrometer spheres with uniform size distribution were obtained with 1-octanol.

Influences of Atomizing Pressure on Preparation Processing of Lead-Free Solder Powder

2011 ◽  
Vol 183-185 ◽  
pp. 2091-2094
Author(s):  
Tian Han Xu ◽  
Mai Qun Zhao ◽  
Dang Hui Wang
Keyword(s):  
Size Distribution ◽  
Negative Pressure ◽  
Pressure Range ◽  
Gas Pressure ◽  
Lead Free ◽  
Lead Free Solder ◽  
Delivery Tube ◽  
Uniform Size ◽  
Free Solder ◽  
Uniform Size Distribution

An investigation on the melt delivery tube tip pressure and the effective atomizing efficiency of atomizing powder was carried out. The results show that all of melt delivery tube tip pressures are negative value in the atomization gas pressure range of 0.4~0.9 MPa, and they monotonously increase with increasing the atomizing pressure; when the atomizing pressure is higher than 0.7 MPa, the negative pressure of the melt delivery tube tip is slowly increasing with continuously increasing the atomizing pressure; the atomized powder possesses higher effective atomizing efficiency, more uniform size distribution, better sphericity and smoother surface at the atomizing pressure of 0.7 MPa and the pressure of the melt delivery tube tip of -39.44 kPa.

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